Tuesday marked the equinox — the exact halfway point where daylight and dark trade places until spring. Around here you can feel it before you can name it: the slant of the afternoon light, the cool that actually sticks once the sun drops, the first morning this week I reached for a jacket without thinking twice about it.
Underground, that shift matters as much as it does above ground. The first-year burdock plants that spent all summer building leaves are now pouring that energy into their taproots — the thick central roots where a biennial, a plant that lives and grows across two full years, stores what it needs for next spring — which is exactly why late September opens the harvest window. Two thousand miles west, a low evergreen shrub most of us will never see growing wild is doing something similar in its leaves instead of a root. And on the other side of the planet, a flower cultivated in Chinese gardens for three thousand years is just starting its own autumn bloom.
Three plants, three completely different relationships with fall. Let's get into it.
Burdock Root (Arctium lappa)
Burdock is a hardy biennial in the daisy family, growing three to six feet tall with broad, wavy-edged leaves and pink-purple thistle flowers that mature into the spiky burrs that famously inspired Velcro. It's naturalized all through my area, common along roadsides, field edges, and disturbed ground. First-year plants that sprouted this spring have spent the whole season storing energy underground — exactly why late September opens the root's harvest window.

Where to Find It
Self-Harvest: Burdock is easy to find if you know what a first-year rosette looks like — a low cluster of broad leaves with no flowering stalk yet, since a bolted second-year plant means a woody, overly bitter root. One real caution: burdock root closely resembles the root of deadly nightshade (Atropa belladonna), and the two can turn up in similar habitats, so a confident ID on the whole plant — not just the root — matters before you dig.
Buy It: Starwest Botanicals and Mountain Rose Herbs both carry organic, cut-and-sifted whole burdock root for tea or decoction. Starwest also has a finely milled powder, and so does Mountain Rose Herbs, if you'd rather stir it into a smoothie or capsule than simmer it. If you don't want to build your own tincture from scratch, both also sell a ready-made liquid extract: Starwest's or Mountain Rose's.
Grow Your Own: Strictly Medicinal Seeds carries organic Gobo (burdock) seeds if you'd like to grow your own root crop start to finish — worth remembering it's a biennial, so you're harvesting that first-year root in fall, before the ground freezes, the same as a wild-dug one.
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When to Harvest
Harvest first-year roots in fall, after the growing season but before the ground freezes — roughly September through November here, with quality dropping fast once a plant bolts into its woodier, more fibrous second year. Look for a robust rosette with no flowering stalk. Roots can run one to two feet deep, so loosen the soil well before pulling to avoid snapping them.
How to Prepare and Extract
Tea: 1–1.5 g (about 1 tsp) dried, chopped root per cup, simmered 10–15 minutes and strained, up to 3 cups a day — or for a stronger extraction, 2.5 g per cup, cold-soaked several hours then simmered up to an hour.
Cold infusion: chopped dried root and cold water, steeped 4–6 hours or overnight — gentler, and it preserves more heat-sensitive compounds.
Decoction (a stronger, simmered preparation, versus a quicker steeped infusion): simmer chopped root 20–30 minutes until liquid reduces by about a third, then strain.
Tincture: fresh root at 1:2 (root weight to menstruum — the alcohol solution doing the extracting), 90 proof; or dried root at 1:5, 90 proof, for balance (some herbalists prefer 1:4 at 60 proof for the water-soluble constituents).
Drying for storage: chop roots into small pieces right after harvest, since whole dried roots are nearly impossible to cut later, then dry in a dehydrator, low oven, or warm out-of-direct-sun spot one to two weeks until moisture-free.
How to Use It
Digestive support: a mild bitter to stimulate appetite and digestion — tea, cold infusion, or decoction up to 3 cups a day, or tincture at 2–4 mL, one to three times daily. Burdock root is also rich in inulin, a prebiotic fiber that feeds beneficial gut bacteria.
Skin support (acne, eczema): internally at the same doses, traditionally valued for its alterative reputation — herbalists use that word for a plant thought to support the body's own detoxification; externally, a decoction or infused oil as a skin wash or in a salve.
Mild diuretic use: same doses as above — use caution alongside prescription diuretics, since effects can stack.
Capsules: dried root powder, 1–2 g, three times daily.
Food: the fresh root — gobo in Japanese cooking — julienned and sautéed, added to soups and stir-fries, or pickled; a genuinely edible vegetable, not just medicinal.
Safety
Avoid in pregnancy and while breastfeeding, since burdock may stimulate uterine contractions. Skip it if you're allergic to ragweed, daisies, or other Asteraceae plants — flagged again below for this issue's chrysanthemum. Use caution alongside diuretics or blood thinners, given burdock's own mild diuretic and anticoagulant activity. And because the root closely resembles deadly nightshade, a confident whole-plant ID matters before wildcrafting — buy from a reputable seller if you're not certain. Other safety measures may be appropriate for you. Always consult a physician.
What the Research Says
For anyone using burdock root for digestive or joint support, the clearest human evidence is a 2014 trial in the International Journal of Rheumatic Diseases: burdock root tea meaningfully lowered inflammatory markers (IL-6, hs-CRP) and a marker of oxidative stress, while raising total antioxidant capacity, in patients with knee osteoarthritis — real support for burdock's anti-inflammatory reputation, measured in actual patients. A broader 2022 review found antimicrobial, anti-inflammatory, antioxidant, and hepatoprotective (liver-protective) activity, though most of that evidence is from lab and animal studies rather than people. Read the 2014 trial.
Uva Ursi (Arctostaphylos uva-ursi)
Uva ursi, also called bearberry, is a low, mat-forming evergreen shrub in the heath family, native to the Pacific Northwest, the Rockies, and the Great Basin, and found in cooler climates across the northern hemisphere generally. It needs acidic, well-drained, often rocky soil — a habitat that can be difficult to duplicate in the garden. Only the leaves are used medicinally, and right now is when arbutin, the compound behind most of uva ursi's urinary-tract benefits, peaks in concentration.

Where to Find It
Self-Harvest: This is a genuinely western plant for most of the USA— if you're not already somewhere uva ursi grows wild, this is more realistically a buy-it herb than a forage-it one. Where it does grow, it's slow to recover from harvest, so take leaves only, never stems, and practice rotational wildcrafting — picking a little from many patches rather than stripping one — since a heavily picked patch can take years to bounce back.
Buy It: Starwest Botanicals and Mountain Rose Herbs both carry organic, cut-and-sifted uva ursi leaf, and Starwest also has it milled into a powder. If you'd rather skip building your own tincture, Mountain Rose Herbs' ready-made liquid extract is the one to reach for — Starwest doesn't carry uva ursi in extract form, leaf and powder only there.
Grow Your Own: Strictly Medicinal Seeds sells uva ursi seed, but it's worth knowing going in that germination is slow and genuinely difficult — it needs both scarification and cold stratification to sprout at all — so treat it as a patient, multi-year project rather than something you'll be harvesting from next season.
This issue may include affiliate links — if you buy through one, we may earn a small commission at no extra cost to you.
When to Harvest
Leaves can technically be picked year-round, but fall is the window that matters most, since arbutin peaks in September and October. Harvest leaves only, not stems, to protect this slow-growing plant.
How to Prepare and Extract
Cold infusion (the preferred method for this herb): 1.5–4 g dried leaf per 150 mL water, steeped cold about 2 hours, then strained — this draws out less tannin, the astringent, mouth-drying compound behind uva ursi's "tightening" reputation, than a hot steep would.
Hot infusion: about ½–¾ tsp (3 g) dried leaf steeped in 5 oz just-boiled water, taken three to four times daily.
Tincture: 1:5 ratio (dried leaf to menstruum), 90 proof alcohol, dosed at 2–4 mL, three to four times daily.
Drying and storage: bundle harvested stems loosely and hang to dry, or spread leaves in open bags, then strip the dried leaves from the stems (dehydrator heat under 120°F to protect active compounds); keep dried leaf sealed in glass somewhere cool, dark, and dry — it holds potency for roughly two to three years, and faded color or weak aroma signals it's past its prime.
How to Use It
Traditional and monograph-supported use: Germany's Commission E monograph recognizes uva ursi specifically for short-term support during inflammatory urinary-tract discomfort, and traditional herbal use follows the same pattern — cold infusion or tincture as above, for short-term astringent support at the earliest signs of irritation. This is essentially the one thing uva ursi is traditionally used for; see What the Research Says below for the clinical trials that have tested this specific use.
Duration matters more here than with most herbs in this newsletter: no more than one to two weeks at a stretch, and no more than about five times a year, since the arbutin in uva ursi converts in the body to hydroquinone, which in excess or with repeated long-term use has been linked to liver stress, kidney irritation, and eye effects. Not a daily tonic herb the way many of the plants we cover here are.
Food: none — this is a medicine-only herb, not a culinary one.
Safety
Not for use in pregnancy, breastfeeding, young children, or anyone with significant liver or kidney disease. Uva ursi's antimicrobial action depends partly on alkaline urine, so avoid pairing it with anything that acidifies urine, like high-dose vitamin C, during a course of use. It's also not a substitute for medical care for a suspected UTI — the trials below studied it as a way to delay or reduce antibiotic use under a doctor's supervision, not replace it. Other safety measures may be appropriate for you. Always consult a physician.
What the Research Says
Two real clinical trials have tested whether uva ursi can stand in for part of a UTI treatment plan. A 2018 German trial (REGATTA) tested whether starting women with uncomplicated UTI symptoms on uva ursi instead of an antibiotic right away could reduce antibiotic use without worsening outcomes. A 2021 trial went further, comparing a standardized uva ursi extract directly against a single dose of the antibiotic fosfomycin across 42 German family practices. Neither is a green light to self-treat without medical guidance, but together they're a real signal this isn't just folk medicine. Read the REGATTA trial or the 2021 comparison trial.
Chrysanthemum Flower (Chrysanthemum morifolium)
Chrysanthemum, known in Traditional Chinese Medicine as Ju Hua, has been cultivated in Chinese gardens for more than three thousand years — one of the so-called "Four Gentlemen" of Chinese flower symbolism. It's in the same daisy family as burdock above, and as ragweed, worth flagging for anyone reading this with a ragweed allergy. Two color varieties are used medicinally with different traditional emphases, and late September is the early edge of their autumn bloom.

Where to Find It
Self-Harvest: This isn't a plant most readers will find growing wild — its long history is as a cultivated garden flower in China, not a foraged one here. If you want your own supply, growing a start is the realistic path, not a roadside search.
Buy It: Starwest Botanicals carries organic whole dried flowers in both the white and yellow varieties, each with its own traditional emphasis (covered in How to Use It below), and Mountain Rose Herbs carries organic whole flowers as well as loose petals if you'd rather skip the whole flower heads.
Grow Your Own: Strictly Medicinal Seeds sells a live, organic potted chrysanthemum start — and that's actually the only legitimate way to grow this one at home. Chrysanthemum morifolium is a sterile cultigen that doesn't produce true seed, so any listing selling "chrysanthemum morifolium seeds" is almost certainly mislabeled or a different plant entirely.
This issue may include affiliate links — if you buy through one, we may earn a small commission at no extra cost to you.
When to Harvest
Flowers are gathered in autumn, September through November, once they're in full bloom. Chinese tradition centers the ideal window on Frost Descent (Shuangjiang) — a solar term, one of the traditional Chinese calendar's 24 markers of the sun's yearly path — that falls in late October, so harvest season here is just getting underway rather than at its peak. Pick on a clear day once the morning dew has dried, ideally between 10am and 2pm, when petals are fully open and color is best.
How to Prepare and Extract
Hot water infusion (the standard preparation): steep 2–4 g dried flowers in water at 185–203°F for 3–5 minutes; TCM dosing runs 5–9 g a day, often simmered briefly as a tea or added to soup, and commonly blended with goji berry, mint, or honeysuckle.
Drying and storage: wilt fresh flowers at room temperature for a few hours, then dry at low-to-moderate heat (a home dehydrator on low for 8–12 hours works well) until fully crisp; keep dried flowers in a well-sealed, dark or opaque container — traditionally a tin — since light and moisture fade a delicate flower's color and aroma faster than they would a tougher root or bark.
Tincture: not a traditional preparation for this one — chrysanthemum is used almost exclusively as a tea in both TCM and Western practice, and no standard alcohol-tincture protocol turned up in our research for it.
How to Use It
Colds, fever, and headache (wind-heat, in TCM terms — the pattern of symptoms TCM associates with an external, feverish-type illness): tea as above, traditionally considered cooling and "wind-heat clearing," and traditionally favoring the yellow-flower variety.
Tired or irritated eyes, and calming the liver (liver-fire, in TCM terms): the same tea, traditionally favoring the white-flower variety instead.
Everyday beverage: a mildly sweet, floral tea enjoyed warm after meals or iced in hot weather, independent of any specific complaint.
Food: primarily a tea herb, though it also shows up decoratively and occasionally in Chinese desserts.
Safety
Same Asteraceae family as burdock above, and as ragweed, so anyone with a known ragweed, daisy, or marigold allergy should avoid it — that cross-reactivity is real and well documented. It may raise blood levels of immunosuppressant drugs, so anyone on that kind of medication should avoid it. Safety data in pregnancy and breastfeeding is limited, and large quantities can cause bloating or cramping in sensitive people. Other safety measures may be appropriate for you. Always consult a physician.
What the Research Says
For anyone using chrysanthemum tea as part of managing blood pressure, two studies point the same way. A 2022 study compared Chrysanthemum morifolium against a closely related wild species and found both lowered blood pressure and protected against tissue damage associated with hypertension, likely thanks to chrysanthemum's rich flavonoid content — flavonoids being a class of plant compounds with antioxidant and anti-inflammatory effects. A separate 2016 study, in rats rather than people, found a polyphenol-rich extract lowered blood pressure and reduced markers of heart-muscle stress — promising, but animal-model evidence only. Read the 2022 study or the 2016 rat study.
From the Garden Gate
Mid-September through early October is the usual Mid-Atlantic window for planting garlic cloves, giving them time to establish roots before the ground goes cold. It's also a good week to lift and divide crowded perennials — daylilies, hostas, and bee balm all transplant well once the heat has broken. And if you've still got tender potted herbs sitting outside, start watching the overnight lows; a light frost may be weeks off yet, but it's worth having a plan for bringing them in before one catches you off guard.
Until next time...
Three plants, three completely different relationships with this time of year — a root racing the ground freeze, a leaf at its one-week-a-year peak, and a flower just getting started on the other side of the world. "The season" means something different depending on which plant you're paying attention to.
If you try any of these — digging your first burdock root, a cold infusion of uva ursi, a cup of chrysanthemum tea — I'd genuinely like to hear how it goes. Come share it in the Facebook group, Growing and Harvesting Medicinal Herbs & Teas, or drop your questions there.
See you in the group!
—Dana
About the editor: Dana is an herbalist, forager and grower who puts plants first for her family's health. She enjoys teaching and learning — and is always up for a conversation about plants of all kinds. Dana also owns the Facebook community: Growing and Harvesting Medicinal Herbs & Teas.

